1. Do not tell a lie

Though telling lies about yourself at a job interview is quite comfortable, it is not suitable for work. If desired any information can be checked, and the truth will be found out.  Lies never bring benefits. Mark Twain said: “If you tell the truth, you don't have to remember anything”. It’s better to think about it. Sooner or later employers will realize what you lied about.

2. To criticize the current job or current Chief

You are so depressed with your current job and bad treatment, that you would give anything not to work there anymore? A job interview is not a place for complaints. Note that counterparty, after hearing your criticism can start considering your general vision of work.

Ask yourself: Do you like people constantly criticizing everything and everyone? Don’t you go too far? The thing is that the interviewer makes a large number of conclusions on the base of your answers. Therefore your negative comments on yours work and the administration can be regarded as a "standard” way of thinking. And it’s you who are exposed in unattractive light, not your work or the administration.

3. To complain

Of course, it’s quite clear that you’ve gone through hard days, and it seems to you that there will be no end to your troubles. However your interviewer doesn't want to know about this. Even if the truth is on your side, to complain is not the most recommended solution. It can be quite harmless, but in the same time it can provoke the interviewer to pass to another subject. Don't allow complaints to change the atmosphere of  the interview.

4. To speak about employees you didn't get along with

Today it’s has become commonplace to ask about ways to resolve conflicts at past jobs during job interviews. Companies understand the importance of relationships between people at work.  If you are asked about difficult situations or employees, try to construct your answer so that not to condemn your former colleagues and not to accuse them of creation of a problem. Because such answer won't bring you any benefit. If you "incidentally" violate this rule, - apologize, and explain that you "meant" absolutely different thing.

5. To be excessively uneasy, or on the contrary, too self-confident

If you are excessively strained and uneasy, the potential employer will think that you won't be able to cope with the work. If, on the contrary, you are too self-confident, it means that you will hardly be able to work in team. If the process of interview causes some concern in you, you better use the practical help of the professional, for example, of a job interview coach.

6. To make a weak first impression

Unfortunately, no matter how the interviewer behaves during the interview, the reasons which he will be guided by to give you “yes” or “no” answer are specified by the very beginning of  the interview. If you manage to make a strong first impression most likely that the shortcomings of your further answers will be ignored.

7. Not to make research on the company

As a rule, the larger the company, the more it requires better preparation for the interview. The more data you gain about the company, the more it says about your serious relation and interest in the company. Otherwise your chances to get the job are very small.